منابع مشابه
Selection-for-action in visual search.
Grasping an object rather than pointing to it enhances processing of its orientation but not its color. Apparently, visual discrimination is selectively enhanced for a behaviorally relevant feature. In two experiments we investigated the limitations and targets of this bias. Specifically, in Experiment 1 we were interested to find out whether the effect is capacity demanding, therefore we manip...
متن کاملSaccade Target Selection During Visual Search
Five experiments are reported in which eye movements were recorded while subjects carried out a visual search task. The aim was to investigate whether an accurate initial target directed saccade could be programmed. In experiments 1-2, subjects moved their eyes to targets defined by colour, which were presented with seven non-targets in a circular array. Accurate saccades with short latencies w...
متن کاملSimple summation rule for optimal fixation selection in visual search
When searching for a known target in a natural texture, practiced humans achieve near-optimal performance compared to a Bayesian ideal searcher constrained with the human map of target detectability across the visual field [Najemnik, J., & Geisler, W. S. (2005). Optimal eye movement strategies in visual search. Nature, 434, 387-391]. To do so, humans must be good at choosing where to fixate dur...
متن کاملA clustering model for item selection in visual search.
In visual search experiments, the subject looks for a target item in a display containing different distractor items. The reaction time (RT) to find the target is measured as a function of the number of distractors (set size). RT is either constant, or increases linearly, with set size. Here we suggest a two-stage model for search in which items are first selected and then recognized. The selec...
متن کامل14 Saccade target selection in unconstrained visual search
Our visual system is regularly faced with more information than it can process at once. As a result, our visual experience generally arises from the sequential sampling of visual details by overtly shifting perceptual resources through reorienting the fovea with saccadic eye movements. An emerging view is that this natural visual behavior can be promoted in visual search tasks that do not empha...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2010
ISSN: 1534-7362
DOI: 10.1167/1.3.108